confused

Rhi
Hey all I did a test a few weeks back and was positive I went to the doctors and it's been awful ever since.
I was bleeding some days heavy some days not at all and some days light. They did a scan and could see a sac bit no baby in it so she said the sac has grown since my last appointment but doesn't  look optimistic. She gave me a leaflet on miscarriage and I have another appointment this week she told me to do another pregnancy test and this is how it's come back so I just don't know I hate not know what do you all think ???